Quick answers
- Which hospitals does William McKay work at?
- Medicare's official clinician data lists William McKay at 3 hospitals: Cox Medical Centers, Freeman Health System - Freeman West and Ozarks Community Hospital of Gravette. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William McKay see patients?
- Medicare's clinician data lists 2 practice locations, including Mount Vernon, MO and Carthage, MO. Call before your visit to confirm the address.
- What is William McKay's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does William McKay accept Medicare assignment?
- Yes. Medicare's clinician data says William McKay accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for William McKay?
- (417) 466-4110, as listed in official Medicare / NPI Registry data.
- What is William McKay's NPI number?
- 1265417331. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William McKay works
Medicare's Facility Affiliation Data lists William McKay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cox Medical CentersSpringfield, MO · Acute Care Hospital · CCN 260040
- Freeman Health System - Freeman WestJoplin, MO · Acute Care Hospital · CCN 260137
- Ozarks Community Hospital of GravetteGravette, AR · Critical Access Hospital · CCN 041331
Practice locations
Addresses where William McKay is enrolled with Medicare (CMS data updated 2026-10-02).
- 108 S Hickory StMount Vernon, MO 65712 (417) 466‑4110
- 327 E Airport DrCarthage, MO 64836 (417) 237‑0604
Group practices
Medicare enrollment lists William McKay as a member of this group (CMS data updated 2026-10-02).
- Sgoh Acquisition Inc93 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Mount Vernon
Clinicians with the same Medicare primary specialty in Mount Vernon, MO — not a recommendation.
Clinician information
| Medical school | Oklahoma State University College Of Osteopathic Medicine |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265417331 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians